Cf fission neutron source
delay fission neutron technique
delayed fission neutron
迟延<分裂>中子
缓发裂变中子
延迟分裂中子
迟延分裂中子
缓发中子
缓发中了
fission neutron absorption
compensated dual neutron log
Compensated Neutron Log
conventional neutron log
dual spaced neutron log
neutron epithermal neutron log
neutron thermal neutron log